Threshing-machine



PATENTED AUG. 27, 1861. B. HOYLE, JR. & A. RALSTON.

THRESHING MACHINE.

W h'lcsse I mentors:

THE mums PETERS co, Puo'raumo. WASHINGTON, n c.

ing machine with our improvements.

UNITED STATES PATENT OFFICE.

BENJAMIN HOYLE, JR, AND ANDERSON RALSTON, OF MABTINS FERRY, OHIOTI-IBESI-IING-MAGHINE.

Specification of Letters Patent N 0. 33,148, dated August 27, 1861.

To all whom it may concern:

Be it known that we, BENJAMIN HOYLE,

Jr, and ANPERSON RALs'roN, both of Martins Ferry, 1n the county ofBelmont and State of Ohio, have invented certain new.

and useful Improvements in Agitators for Straw-Carriers onThreslnngh/Iachmes; and We do hereby declare that the'same are describedand represented in the following specifications and drawings.

To enable others skilled in the art to make and use ourimprovements wewill proceed to describe their construction and operation referring tothe drawings in which the same letters indicate like parts in each ofthe figures. t

Figure 1. is a plan or top view of a thresh- Fig. 2 is a sectionalelevation through the center of Fig. 1 longitudinally.

The nature of our improvement consists in arranging over an endless bandstraw carrier, of a threshing machine, one or more rock shafts withradial tines or fingers which are vibrated to agitate the straw on thecarri er and shake out the grain, while the straw is being conveyed onthe straw carrier.

In the accompanying drawings, some parts of the machine, which are notnecessary to show the connection of our improvements are omitted.

(A A) is the frame of a threshing machine and straw carrier; which framemay be made in the form represented, or of such other configuration asmay answer the pur pose.

(B) is the threshing cylinder, having its shaft mounted in bearings(C,.) on' the frame (A). This cylinder is provided with spikes or teethand is made to revolve rapidly by means of a belt and pulley orotherwise. i

(D) is a fixed concave, furnished with spikes or teeth (D and is placedbelow the cylinder (B,).

The straw carrier (E) consists of two or more endless parallel straps(E) passing around the drum (F) and drum or independent pulleys (F); tothese straps, at suitable distances apart, are att'acheda number oftransverse bars or slats G, each bar or slat being provided with asuitable number of holes, into which are inserted the cords (H, H,)running parallel with said straps. A carrier thus constructedconstitutes what is technically termed an open is obvious thatbya-slight modification, any

other iorm'of carrier, embodying the princi ple of an endless revolvingbelt, may be substituted thereforas, for instance, by extending thebottom (I) under the drum (F) an endless apron of canvas, or othersuitable material, furnished withtransversebars or strips may be used. y

(I) is the return bottom, upon which the grain discharged from thecarrier is conducted to the place of deposit (J Motion is communicatedto the straw carrier (E) by means of the pulleys (K) and and strap (M).The standards (S S) are provided with adjusting slots (N), and arefitted to the sides of the trunk, as represented in the drawings, andsupport the shafts (T T). These shafts (T T) between their supports (SS) are furnished with any suitable number of tines or fingers (P), andat one end each is provided with an arm by means of which, and theconnecting rods (It) and (R) and crank (U) or their equivalent. Thetines or fingers (P) are made to vibrate in any desired arc of a circle.In the drawings, the shafts (T T) are represented as placed above theendless belt carrier and parallel to its axis of revolution. however, tothis particular arrangement, as it is obvious that said shafts (T T) maybe placed at any angle to the axis of the carriers revolution, withoutessentially changing the principle of construction and operation; thoughit is probable that their action would be thereby rendered somewhat lesseflicient.

(V) represents the cap or casing over the threshing cylinder; (W) theunder cas-' ing or chute. The motions of the yarious parts beingindicated by the directions of the respective arrows, their motions andconnections will be understood by an inspection of the drawings.

The threshing is efiected by passing the unthreshed grain between theteeth orspikes of the rapidly rotating cylinder (B), and those of thefixed concave (D); The force generated by the revolution of the cylinder(B) throws the grain and straw over the chute (W), at the termination ofwhich there is a space, through which a portion of the grain isprecipitated, while the straw, with the remaining grain is thrown uponWe do not confine ourselves,

theendlessfstraw carrier (E) a further portion of the grain passingthrough its meshes, and falling upon the return bottom (I), while'thestraw is carried on the slats and cords to the place of discharge (X).The straw in its progress on the carrier (E) is operated upon by thetines or fingers of shafts (T T) the form and peculiar vii bratorymotion of which check, shake and toss the straw in such a way aseffectually to separate the remaining grain therefrom. The grain thusdisengaged then passes through the meshes of the open carrier (E) uponthe return bottom (I) whenceit slides, or is conveyed by the returnmotion of the slats (G) of the carrier (E) to the place of deposit (J)where it, together with the grain previously separated, if desired,

may be immediately cleaned by any of the cleaning apparatus now used.

The above operation is predicated upon the use of an open carrier.Should an endless apron of canvas, or other suitable material, providedwith transverse bars or strips, be substituted,-the grain disengagedfromthe straw will fall between said bars or strips, upon the apron, andwill be discharged upon the bottom (I) under the drum (F) whence it,will be conveyed to the place. of deposit (J) bythe salne means l asthat separated by the meshes of the open carrier above'described. Wedonot con- 51;. 1

line ourselves to either form of carrier,

neither do we limitourselves to any relativefl 7 speed of carrier andvibrating shafts (T T), but in practice generally gear so thalt Incombination with an endless belt 1;

carrier of a threshing machine, one or more rock shafts with radialtines or fingers ar ranged above the straw carrier, and, operated 50substantially as described, to agitate the straw on the carrier andshake out the grain;

\Vitnesses l VM. WALLACE, ELLIs J. HoYLE.

)Ve will now state ANDERSON RALsroN; i a:

